panic: kernel diagnostic assertion "len >= 0 && !M_READONLY(m)" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/uipc_mbuf.c", line 1384 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *253882 92302 0 0 0x4000000 0K syz-executor.2 68728 75350 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82577da7) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ebc34,ffffffff8255f654,568,ffffffff8258dc04) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd8068232000,ffffffc1) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff800028f0be50,ffff800000dbd200,ffff800028f0bbb8,ffff800028f0bab8) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(41700,ffff800028f0be50,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff800028f0bcb0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd8070ecfe00,ffff800028f0be50,1,fffffd807f7d85a0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd8066041560,ffff800028f0be50,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80002e3642a0,6,ffff800028f0be50,1,ffff800028f0bf50) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff80002e3642a0,ffff800028f0bef8,ffff800028f0bf50) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff80002e3642a0,ffff800028f0bef8,ffff800028f0bf50) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff800028f0bfc0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800028f0bfc0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7844b169f0, count: 2 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "len >= 0 && !M_READONLY(m)" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/uipc_mbuf.c", line 1384 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82577da7) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ebc34,ffffffff8255f654,568,ffffffff8258dc04) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd8068232000,ffffffc1) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff800028f0be50,ffff800000dbd200,ffff800028f0bbb8,ffff800028f0bab8) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(41700,ffff800028f0be50,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff800028f0bcb0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd8070ecfe00,ffff800028f0be50,1,fffffd807f7d85a0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd8066041560,ffff800028f0be50,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80002e3642a0,6,ffff800028f0be50,1,ffff800028f0bf50) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff80002e3642a0,ffff800028f0bef8,ffff800028f0bf50) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff80002e3642a0,ffff800028f0bef8,ffff800028f0bf50) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff800028f0bfc0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800028f0bfc0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7844b169f0, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800028f0b8d0 rbx 0xffffffff82966bff cpu_info_full_primary+0x2bff rdx 0xffff800000bd83c0 rcx 0 rax 0xffff80002e3642a0 r8 0 r9 0x8080808080808080 r10 0x2c3fb5ac6a7df015 r11 0xec652703ba34e398 r12 0xffffffff82966a00 cpu_info_full_primary+0x2a00 r13 0 r14 0 r15 0x1 rip 0xffffffff8228cc28 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800028f0b8c0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.2) pid=253882 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff80002e365ce0,0xffff80002e365270 process=0xffff8000fffee588 user=0xffff800028f07000, vmspace=0xfffffd80625e4460 estcpu=32, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 45476 241938 35762 0 2 0 syz-executor.6 62739 495425 8196 0 3 0x80 fsleep syz-executor.1 62739 422789 8196 0 3 0x4000080 fsleep syz-executor.1 62739 484567 8196 0 2 0x4000000 syz-executor.1 13456 45165 25829 0 3 0x80 fsleep syz-executor.3 13456 374348 25829 0 3 0x4000080 fsleep syz-executor.3 13456 9714 25829 0 3 0x4000080 netcon syz-executor.3 13456 482009 25829 0 3 0x4000080 fsleep syz-executor.3 92302 131077 44085 0 2 0 syz-executor.2 *92302 253882 44085 0 7 0x4000000 syz-executor.2 71819 92331 90899 0 3 0x80 fsleep syz-executor.5 71819 418105 90899 0 3 0x4000080 fsleep syz-executor.5 71819 457312 90899 0 3 0x4000080 tunread syz-executor.5 25829 306552 69804 0 2 0x482 syz-executor.3 44085 523471 69804 0 2 0x482 syz-executor.2 1495 33820 69804 0 2 0x482 syz-executor.4 57537 236535 69804 0 2 0x482 syz-executor.0 90899 140111 69804 0 2 0x482 syz-executor.5 35762 29670 69804 0 2 0x482 syz-executor.6 8196 102565 69804 0 2 0x482 syz-executor.1 95326 133456 0 0 3 0x14200 bored sosplice 33849 89237 0 0 3 0x14280 nfsidl nfsio 11169 168439 0 0 3 0x14280 nfsidl nfsio 82597 188290 0 0 3 0x14280 nfsidl nfsio 85157 418728 0 0 3 0x14280 nfsidl nfsio 65052 309783 0 0 3 0x14280 nfsidl nfsio 37790 192387 0 0 3 0x14280 nfsidl nfsio 10965 396230 0 0 3 0x14280 nfsidl nfsio 93971 447915 0 0 3 0x14280 nfsidl nfsio 99530 414844 0 0 3 0x14280 nfsidl nfsio 29814 286221 0 0 3 0x14280 nfsidl nfsio 64124 480150 0 0 3 0x14280 nfsidl nfsio 94940 251547 0 0 3 0x14280 nfsidl nfsio 56286 130962 0 0 3 0x14280 nfsidl nfsio 95804 119772 0 0 3 0x14280 nfsidl nfsio 80697 508616 0 0 3 0x14280 nfsidl nfsio 7860 407197 0 0 3 0x14280 nfsidl nfsio 80024 240718 0 0 3 0x14280 nfsidl nfsio 60258 516525 0 0 3 0x14280 nfsidl nfsio 16726 158514 0 0 3 0x14280 nfsidl nfsio 66564 44793 0 0 3 0x14280 nfsidl nfsio 52614 19798 69804 0 2 0x482 syz-executor.7 69804 113016 24247 0 3 0x82 thrsleep syz-fuzzer 69804 509272 24247 0 3 0x4000082 thrsleep syz-fuzzer 69804 485292 24247 0 3 0x4000082 thrsleep syz-fuzzer 69804 453506 24247 0 3 0x4000082 thrsleep syz-fuzzer 69804 229408 24247 0 3 0x4000082 thrsleep syz-fuzzer 69804 2409 24247 0 3 0x4000082 thrsleep syz-fuzzer 69804 259451 24247 0 3 0x4000082 thrsleep syz-fuzzer 69804 351188 24247 0 3 0x4000082 thrsleep syz-fuzzer 69804 285918 24247 0 3 0x4000082 kqread syz-fuzzer 24247 96233 15136 0 3 0x10008a sigsusp ksh 15136 121740 72974 0 3 0x9a kqread sshd 33816 441426 1 0 3 0x100083 ttyopn getty 72974 292353 1 0 3 0x88 kqread sshd 2992 225747 62628 74 3 0x100092 bpf pflogd 62628 143229 1 0 3 0x80 netio pflogd 41566 163918 62510 73 3 0x100090 kqread syslogd 62510 201746 1 0 3 0x100082 netio syslogd 85304 392116 1 0 3 0x100080 kqread resolvd 26264 101855 43569 77 3 0x100092 kqread dhcpleased 4858 177813 43569 77 3 0x100092 kqread dhcpleased 43569 184619 1 0 3 0x80 kqread dhcpleased 1874 281557 0 0 3 0x14200 bored smr 97662 169212 0 0 2 0x14200 zerothread 23387 294328 0 0 3 0x14200 aiodoned aiodoned 49683 378383 0 0 3 0x14200 syncer update 25282 307593 0 0 3 0x14200 cleaner cleaner 75350 68728 0 0 7 0x14200 reaper 30915 371959 0 0 3 0x14200 pgdaemon pagedaemon 6218 507350 0 0 3 0x14200 bored viomb 16993 303464 0 0 3 0x40014200 acpi0 acpi0 59350 96989 0 0 3 0x40014200 idle1 71848 246948 0 0 3 0x14200 bored softnet 57493 102993 0 0 3 0x14200 bored systqmp 35505 325215 0 0 3 0x14200 bored systq 98597 416757 0 0 2 0x40014200 softclock 25305 473501 0 0 3 0x40014200 idle0 1 480125 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd807effd3f0) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pmap_do_remove+0x8b rcr3 machine/cpufunc.h:141 [inline] #3 pmap_do_remove+0x8b pmap_map_ptes sys/arch/amd64/amd64/pmap.c:414 [inline] #3 pmap_do_remove+0x8b sys/arch/amd64/amd64/pmap.c:1769 #4 uvm_unmap_kill_entry_withlock+0x1af sys/uvm/uvm_map.c:2139 #5 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #5 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 #7 reaper+0x18b sys/kern/kern_exit.c:462 #8 proc_trampoline+0x1c Process 92302 (syz-executor.2) thread 0xffff80002e3642a0 (253882) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a7ab80) #0 witness_lock+0x44d #1 vn_write+0x42 sys/kern/vfs_vnops.c:399 #2 dofilewritev+0x19c sys/kern/sys_generic.c:381 #3 sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] #3 sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 #4 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #5 Xsyscall+0x128 Process 71819 (syz-executor.5) thread 0xffff8000ffff5ce0 (457312) exclusive rrwlock inode r = 0 (0xfffffd80674853d0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 spec_open+0x3e6 sys/kern/spec_vnops.c:158 #6 VOP_OPEN+0x75 sys/kern/vfs_vops.c:138 #7 vn_open+0x467 sys/kern/vfs_vnops.c:183 #8 vndioctl+0xa07 sys/dev/vnd.c:459 #9 VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264 #10 vn_ioctl+0xbc sys/kern/vfs_vnops.c:531 #11 sys_ioctl+0x4a2 #12 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10228 6643K 7481K 78643K 59651 0 pcb 13 18K 20K 78643K 1418 0 rtable 199 6K 19K 78643K 2480 0 ifaddr 88 21K 25K 78643K 1512 0 sysctl 2 0K 0K 78643K 2 0 counters 58 35K 35K 78643K 308 0 ioctlops 0 0K 8K 78643K 9722 0 iov 0 0K 16K 78643K 2774 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1431 89K 90K 78643K 12977 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 86 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1371 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 93K 78643K 11295 0 sigio 0 0K 0K 78643K 104 0 proc 70 87K 124K 78643K 1667 0 subproc 104 6K 6K 78643K 468 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1451 0 in_multi 83 5K 7K 78643K 715 0 ether_multi 1 0K 0K 78643K 97 0 mrt 1 0K 0K 78643K 50 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 247 1102K 1102K 78643K 247 0 exec 0 0K 2K 78643K 2405 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 499 813K 828K 78643K 148557 0 UVM aobj 131 4K 4K 78643K 133 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 907 0 NDP 13 0K 1K 78643K 229 0 temp 137 4706K 4817K 78643K 80379 0 kqueue 12 18K 24K 78643K 675 0 SYN cache 2 8K 16K 78643K 3 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 641 0 638 7 6 1 3 0 8 0 rtentry 112 580 0 491 4 1 3 4 0 8 0 unpcb 136 6533 0 6518 84 79 5 9 0 8 4 syncache 296 45 0 45 12 12 0 1 0 8 0 tcpqe 32 25 0 25 8 8 0 1 0 8 0 tcpcb 736 4747 0 4734 168 165 3 14 0 8 0 arp 120 92 0 75 1 0 1 1 0 8 0 inpcb 304 9974 0 9961 179 177 2 16 0 8 0 rttmr 72 14 0 14 4 4 0 1 0 8 0 nd6 48 133 0 115 1 0 1 1 0 8 0 pkpcb 40 13 0 13 4 4 0 1 0 8 0 kcovpl 48 36 0 28 1 0 1 1 0 8 0 ppxss 1248 47 0 47 15 15 0 1 0 8 0 pfstscr 40 15 0 15 3 3 0 1 0 8 0 pffrag 232 90 0 90 6 6 0 1 0 482 0 pffrnode 88 57 0 57 6 6 0 1 0 8 0 pffrent 40 497 0 497 6 6 0 1 0 8 0 pfosfp 40 1465 0 1040 5 0 5 5 0 8 0 pfosfpen 112 1465 0 748 21 0 21 21 0 8 0 pfrktable 1344 235 0 235 11 11 0 3 0 8 0 pftag 88 94 0 92 2 1 1 1 0 8 0 pfstitem 24 42 0 40 1 0 1 1 0 8 0 pfstkey 112 60 0 58 1 0 1 1 0 8 0 pfstate 320 49 0 47 3 2 1 3 0 8 0 pfrule 1360 708 0 707 12 11 1 9 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2431 0 2015 39 12 27 30 0 8 0 art_table 32 2432 0 2015 4 0 4 4 0 8 0 art_node 16 575 0 496 1 0 1 1 0 8 0 sysvmsgpl 40 120 0 96 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 1369 0 1359 1 0 1 1 0 8 0 shmpl 112 130 0 2 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 15534 0 14084 91 0 91 91 0 8 0 ffsino 272 15534 0 14084 97 0 97 97 0 8 0 nchpl 144 30143 0 28505 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 116846 0 116846 4 3 1 2 0 8 1 percpumem 16 166 0 125 1 0 1 1 0 8 0 vcpupl 2048 218 0 0 28 0 28 28 0 8 0 vmpool 560 249 0 31 17 1 16 16 0 8 0 pfiaddrpl 120 107 0 107 4 4 0 2 0 8 0 scsiplug 72 6 0 6 2 2 0 1 0 8 0 scxspl 216 95827 0 95827 36 35 1 8 0 8 1 plimitpl 152 1525 0 1508 1 0 1 1 0 8 0 sigapl 424 11578 0 11515 8 0 8 8 0 8 0 futexpl 64 117730 0 117723 3 2 1 1 0 8 0 knotepl 120 352 0 0 7 1 6 6 0 8 0 kqueuepl 216 2300 0 2292 50 49 1 8 0 8 0 pipepl 336 2349 0 2321 86 80 6 13 0 8 3 fdescpl 496 11539 0 11511 5 1 4 5 0 8 0 filepl 152 82037 0 81791 172 157 15 20 0 8 5 lockfpl 104 2214 0 2212 4 3 1 2 0 8 0 lockfspl 48 791 0 789 1 0 1 1 0 8 0 sessionpl 144 52 0 35 1 0 1 1 0 8 0 pgrppl 48 170 0 153 1 0 1 1 0 8 0 ucredpl 96 12519 0 12503 1 0 1 1 0 8 0 zombiepl 144 11515 0 11512 1 0 1 1 0 8 0 processpl 1064 11578 0 11512 5 0 5 5 0 8 0 procpl 672 35894 0 35811 35 26 9 9 0 8 1 srpgc 96 42 0 42 9 9 0 1 0 8 0 sosppl 168 94 0 94 15 14 1 1 0 8 1 sockpl 480 17207 0 17176 474 461 13 34 0 8 8 mcl64k 65536 33 0 0 3 0 3 3 0 8 0 mcl16k 16384 25 0 0 4 1 3 3 0 8 0 mcl12k 12288 44 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 47 0 0 4 1 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 10 0 0 1 0 1 1 0 8 0 mcl2k 2048 512 0 0 33 7 26 31 0 8 0 mtagpl 96 2449 0 0 50 0 50 50 0 8 0 mbufpl 256 2940 0 0 166 0 166 166 0 8 0 bufpl 288 21724 0 15388 453 0 453 453 0 8 0 anonpl 24 3356294 0 3333589 297 142 155 169 0 186 5 amapchunkpl 152 386205 0 385322 137 100 37 50 0 158 0 amappl16 200 31204 0 30399 143 96 47 56 0 8 0 amappl15 192 2890 0 2883 1 0 1 1 0 8 0 amappl14 184 420 0 412 1 0 1 1 0 8 0 amappl13 176 2828 0 2822 1 0 1 1 0 8 0 amappl12 168 240 0 235 1 0 1 1 0 8 0 amappl11 160 866 0 849 1 0 1 1 0 8 0 amappl10 152 1468 0 1457 1 0 1 1 0 8 0 amappl9 144 2712 0 2707 1 0 1 1 0 8 0 amappl8 136 2220 0 2119 4 0 4 4 0 8 0 amappl7 128 1081 0 1068 1 0 1 1 0 8 0 amappl6 120 2541 0 2512 3 2 1 2 0 8 0 amappl5 112 10780 0 10762 1 0 1 1 0 8 0 amappl4 104 3392 0 3361 2 0 2 2 0 8 0 amappl3 96 2134 0 2119 1 0 1 1 0 8 0 amappl2 88 4123 0 4065 3 1 2 3 0 8 0 amappl1 80 213361 0 212790 20 6 14 19 0 8 0 amappl 88 147297 0 146979 10 1 9 9 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 132 0 2 3 0 3 3 0 8 0 uaddrrnd 24 11788 0 11542 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 11788 0 11542 2 0 2 2 0 8 0 vmmpekpl 168 91350 0 91270 4 0 4 4 0 8 0 vmmpepl 168 1063846 0 1059552 355 152 203 222 0 357 0 vmsppl 368 11787 0 11541 24 1 23 23 0 8 0 rwobjpl 56 266097 0 258135 128 14 114 116 0 8 0 pdppl 4096 23583 0 23300 977 690 287 287 0 8 4 pvpl 32 5694341 0 5670082 461 238 223 271 0 265 5 pmappl 248 11787 0 11541 16 0 16 16 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 2200 0 974 36 0 36 36 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 panic(ffffffff82577da7) at panic+0x177 sys/kern/subr_prf.c:202 __assert(ffffffff825ebc34,ffffffff8255f654,568,ffffffff8258dc04) at __assert+0x25 sys/kern/subr_prf.c:161 m_align(fffffd8068232000,ffffffc1) at m_align+0x1a0 sys/kern/uipc_mbuf.c:1385 bpf_movein(ffff800028f0be50,ffff800000dbd200,ffff800028f0bbb8,ffff800028f0bab8) at bpf_movein+0x25e sys/net/bpf.c:228 bpfwrite(41700,ffff800028f0be50,1) at bpfwrite+0x169 sys/net/bpf.c:644 spec_write(ffff800028f0bcb0) at spec_write+0xd4 sys/kern/spec_vnops.c:309 VOP_WRITE(fffffd8070ecfe00,ffff800028f0be50,1,fffffd807f7d85a0) at VOP_WRITE+0xbf sys/kern/vfs_vops.c:245 vn_write(fffffd8066041560,ffff800028f0be50,1) at vn_write+0x1a1 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80002e3642a0,6,ffff800028f0be50,1,ffff800028f0bf50) at dofilewritev+0x19c sys/kern/sys_generic.c:381 sys_pad_pwrite(ffff80002e3642a0,ffff800028f0bef8,ffff800028f0bf50) at sys_pad_pwrite+0x92 sys_pwrite sys/kern/vfs_syscalls.c:3354 [inline] sys_pad_pwrite(ffff80002e3642a0,ffff800028f0bef8,ffff800028f0bf50) at sys_pad_pwrite+0x92 sys/kern/vfs_syscalls.c:3426 syscall(ffff800028f0bfc0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800028f0bfc0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7844b169f0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a7a978) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a7a978) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800021135ab0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1615 uvm_map_teardown(fffffd80625e45d0) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2789 uvmspace_free(fffffd80625e45d0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff8000210f9500) at reaper+0x18b sys/kern/kern_exit.c:462 end trace frame: 0x0, count: 7 ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a7a978) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82a7a978) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800021135ab0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1615 uvm_map_teardown(fffffd80625e45d0) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2789 uvmspace_free(fffffd80625e45d0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff8000210f9500) at reaper+0x18b sys/kern/kern_exit.c:462 end trace frame: 0x0, count: -8